ANALOG EFFECT OF DIGITAL INTERCONNECTS IN PCB DESIGN

In this tutorial we are going to learn about ANALOG EFFECT OF DIGITAL INTERCONNECTS IN PCB DESIGN

In a truly digital world there would only be 1s & 0s. In electronics PCB design we represent them as “high” & “low” signals. When the input to the component is high voltage the component switches (this is known as the high threshold). When the input signal falls back to the low voltage, the component switches back. (this is known as the low threshold). Unfortunately, when you send a high-speed digital signal down a wire it gets distorted through internal reflections & coupling to other traces. This may cause the signal to momentarily jump above the high threshold or fall below the low threshold, causing components to switch when they shouldn’t. These effects are analog.

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